Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0172f779 authored by Joonsoo Kim's avatar Joonsoo Kim Committed by Pekka Enberg
Browse files

slab: fix to calm down kmemleak warning 



After using struct page as slab management, we should not call
kmemleak_scan_area(), since struct page isn't the tracking object of
kmemleak. Without this patch and if CONFIG_DEBUG_KMEMLEAK is enabled,
so many kmemleak warnings are printed.

Signed-off-by: default avatarJoonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: default avatarPekka Enberg <penberg@iki.fi>
parent e7444d9b

mm/slab.c

+0 −8
Original line number Diff line number Diff line
@@ -2531,14 +2531,6 @@ static struct freelist *alloc_slabmgmt(struct kmem_cache *cachep, 
		/* Slab management obj is off-slab. */

		freelist = kmem_cache_alloc_node(cachep->freelist_cache,

					      local_flags, nodeid);

		/*

		 * If the first object in the slab is leaked (it's allocated

		 * but no one has a reference to it), we want to make sure

		 * kmemleak does not treat the ->s_mem pointer as a reference

		 * to the object. Otherwise we will not report the leak.

		 */

		kmemleak_scan_area(&page->lru, sizeof(struct list_head),

				   local_flags);

		if (!freelist)

			return NULL;

	} else {